Mathematics

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Across
  1. 4. Are the roots of a quadratic equation
  2. 9. A two-dimensional, mirror-symmetrical curve
  3. 11. Ax+bx+c=0
  4. 13. Has two real roots
  5. 14. Has only one root
  6. 15. Another term for ordinate
  7. 16. A(x-h)+k
  8. 17. The longest leg of a right triangle
  9. 18. of linear function Ax+By+C = 0 or Ax+By=C
  10. 19. A way of getting the zeroes of quadratic function by factors
  11. 20. Whenever the slope is increasing
Down
  1. 1. Switching/interchanging coordinates of the ordered pairs
  2. 2. Any set of one or more ordered pairs
  3. 3. A special type of relation
  4. 5. A way of getting the zeroes of quadratic function by square roots
  5. 6. If the denominator is zero
  6. 7. Another term for abcissa
  7. 8. H= -b/2a k=4ac-b/4a
  8. 10. Whenever the slope is decreasing
  9. 12. Has no real roots